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Elena L [17]
3 years ago
6

If the hydrogen ion concentration is 10-7M, what is the pH of the solution? Show all work.

Chemistry
1 answer:
Kobotan [32]3 years ago
6 0
Remember pH=-log(H ions). So it would be pH=-log(10^-7).
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Answer:

Db

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-- A scientist combines 14 grams of potassium nitrate with an unknown amount of
igor_vitrenko [27]

Answer:

The unknown amount of potassium chloride is 13.6 grams.            

 

Explanation:

The reaction of 14 grams of KNO₃ with KCl produces a total mass of 27.6 grams of the products.

The law of conservation of mass tells us that the total mass of the reactants must be the same that the total mass of the products. So, we can find the mass of KCl as follows:

m_{r} = m_{p}

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Therefore, the unknown amount of potassium chloride is 13.6 grams.           

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5 0
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What kinds of scientific investigations involve making observations?
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Answer:

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3 0
3 years ago
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